142 Visuospatial Resonance

A phenomenon in which different images are visible at different distances.

• Images rendered at a high spatial frequency appear as sharp outlines with little between-edge detail. High-spatial-frequency images are easily interpreted up close, but are not visible from a distance.

• Images rendered at a low spatial frequency appear as blurry images with little edge detail. Low-spatial-frequency images are not visible up close, but are easily interpreted from a distance.

• When images rendered at different spatial frequencies are combined, the result is visuospatial resonance. The effect can be stunning.

• Consider visuospatial resonance as a means of increasing the interestingness of posters and billboards, and masking ...

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